xref: /freebsd-src/stand/usb/storage/umass_common.c (revision ee15875c01593b287e55147c482b914e3ab01152)
1ca987d46SWarner Losh /*-
2ca987d46SWarner Losh  * Copyright (c) 2014 Hans Petter Selasky <hselasky@FreeBSD.org>
3ca987d46SWarner Losh  * All rights reserved.
4ca987d46SWarner Losh  *
5ca987d46SWarner Losh  * This software was developed by SRI International and the University of
6ca987d46SWarner Losh  * Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237)
7ca987d46SWarner Losh  * ("CTSRD"), as part of the DARPA CRASH research programme.
8ca987d46SWarner Losh  *
9ca987d46SWarner Losh  * Redistribution and use in source and binary forms, with or without
10ca987d46SWarner Losh  * modification, are permitted provided that the following conditions
11ca987d46SWarner Losh  * are met:
12ca987d46SWarner Losh  * 1. Redistributions of source code must retain the above copyright
13ca987d46SWarner Losh  *    notice, this list of conditions and the following disclaimer.
14ca987d46SWarner Losh  * 2. Redistributions in binary form must reproduce the above copyright
15ca987d46SWarner Losh  *    notice, this list of conditions and the following disclaimer in the
16ca987d46SWarner Losh  *    documentation and/or other materials provided with the distribution.
17ca987d46SWarner Losh  *
18ca987d46SWarner Losh  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19ca987d46SWarner Losh  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20ca987d46SWarner Losh  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21ca987d46SWarner Losh  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22ca987d46SWarner Losh  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23ca987d46SWarner Losh  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24ca987d46SWarner Losh  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25ca987d46SWarner Losh  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26ca987d46SWarner Losh  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27ca987d46SWarner Losh  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28ca987d46SWarner Losh  * SUCH DAMAGE.
29ca987d46SWarner Losh  */
30ca987d46SWarner Losh 
31ca987d46SWarner Losh #include USB_GLOBAL_INCLUDE_FILE
32ca987d46SWarner Losh 
33ca987d46SWarner Losh #include "umass_common.h"
34ca987d46SWarner Losh 
35ca987d46SWarner Losh struct usb_attach_arg umass_uaa;
36ca987d46SWarner Losh 
37ca987d46SWarner Losh static device_probe_t umass_probe;
38ca987d46SWarner Losh static device_attach_t umass_attach;
39ca987d46SWarner Losh static device_detach_t umass_detach;
40ca987d46SWarner Losh 
41ca987d46SWarner Losh static device_method_t umass_methods[] = {
42ca987d46SWarner Losh 	/* Device interface */
43ca987d46SWarner Losh 	DEVMETHOD(device_probe, umass_probe),
44ca987d46SWarner Losh 	DEVMETHOD(device_attach, umass_attach),
45ca987d46SWarner Losh 	DEVMETHOD(device_detach, umass_detach),
46ca987d46SWarner Losh 
47ca987d46SWarner Losh 	DEVMETHOD_END
48ca987d46SWarner Losh };
49ca987d46SWarner Losh 
50ca987d46SWarner Losh static driver_t umass_driver = {
51ca987d46SWarner Losh 	.name = "umass",
52ca987d46SWarner Losh 	.methods = umass_methods,
53ca987d46SWarner Losh };
54ca987d46SWarner Losh 
55*ee15875cSJohn Baldwin DRIVER_MODULE(umass, uhub, umass_driver, NULL, 0);
56ca987d46SWarner Losh 
57ca987d46SWarner Losh static int
58ca987d46SWarner Losh umass_probe(device_t dev)
59ca987d46SWarner Losh {
60ca987d46SWarner Losh 	struct usb_attach_arg *uaa = device_get_ivars(dev);
61ca987d46SWarner Losh 
62ca987d46SWarner Losh 	if (uaa->usb_mode != USB_MODE_HOST ||
63ca987d46SWarner Losh 	    uaa->info.bInterfaceClass != UICLASS_MASS ||
64ca987d46SWarner Losh 	    uaa->info.bInterfaceSubClass != UISUBCLASS_SCSI ||
65ca987d46SWarner Losh 	    uaa->info.bInterfaceProtocol != UIPROTO_MASS_BBB ||
66ca987d46SWarner Losh 	    device_get_unit(dev) != 0)
67ca987d46SWarner Losh 		return (ENXIO);
68ca987d46SWarner Losh 	return (0);
69ca987d46SWarner Losh }
70ca987d46SWarner Losh 
71ca987d46SWarner Losh static int
72ca987d46SWarner Losh umass_attach(device_t dev)
73ca987d46SWarner Losh {
74ca987d46SWarner Losh 	struct usb_attach_arg *uaa = device_get_ivars(dev);
75ca987d46SWarner Losh 	umass_uaa = *uaa;
76ca987d46SWarner Losh 	return (0);			/* success */
77ca987d46SWarner Losh }
78ca987d46SWarner Losh 
79ca987d46SWarner Losh static int
80ca987d46SWarner Losh umass_detach(device_t dev)
81ca987d46SWarner Losh {
82ca987d46SWarner Losh 
83ca987d46SWarner Losh #ifdef USB_DEBUG
84ca987d46SWarner Losh 	memset(&umass_uaa, 0, sizeof(umass_uaa));
85ca987d46SWarner Losh #endif
86ca987d46SWarner Losh 	return (0);
87ca987d46SWarner Losh }
88